Frederick james mitchell



(No Model.)

F. J. MITCHELL.

VALVE.

Patented Dec. z, '1890.

UNITED STATES FFICE.

FREDERICK JAMES MITCHELL, OF NEW YORK, N. Y., ASSIGNOR TO CASPER I.. COHN, OF SAMEPLACE.

VALVE.

SPECIFICATION forming part of Letters Patent No. 441,682, dated December 2, 1890 Application filed. March 13, 1890.

To all whom it may concern:

Be it known that I, FREDERICK J nMEs MITCHELL, a citizen of the United States, and a resident of the city, county, and State of New York, have invented a certain new and useful Improvement in Valves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

The primary object of my invention is to provide a valve for use in disinfecting systems, and although I do not limit myself to lsuch particular use, since my invention may be used for many other purposes, I will de- :5 scribe it as I now use it in the well-known germicide disinfecting system. In such system a concentrated solution of some suitable disinfecting liquid-such. as chloride of zinc-is continuously and very slowly delivzo ered into a suitable receptacle, preferably by the apparatus claimed in my application for United States Patent iiled December 20, 1889, Serial No. 334,400. Then the solution reaches such receptacle it is diluted with water and is thence conducted directly to the closet, sink, or other point desired. It is essential in such system that the water with which the disinfecting liquid is diluted, and which aids in carrying it to the objective 3o point, should be supplied continuously, but at a very slow rate, and it is necessary thatsuch rate should be accelerated at intervals--a-s, for instance, Whenever the closet, sink, or other apparatus is used-in order that the 3 5 disinfecting liquid may quickly and with certainty reach the point to which it is to be applied, and also that the passages leading thereto may be kept properly flushed. This intermittent or occasional'acceleration of the 4o rate of flow also serves to fiush the passages of the valve through which the water is supplied, and which would otherwise soon become clogged with sedimentary deposits on account of the necessarily slow rate of flow. 4 5 therethrough.

My invention, by means of which I attain the foregoing advant-ages, consists, generally, in means for intermittently or at intervals, regular or otherwise, accelerating the rate 5o of flow through a valve through which the Serial No. 343,734. (No model.)

normal rate of flow is very small; and it consists, further, in mechanism for regulating the area of the valve-orifice, so that the normal rate of flow through the same may beincreased or diminished, as desired.

In the accompanying drawings, Figure l is a perspective view in elevation of my improved valve and connections. Fig. 2 is a view thereof in cross-section on the line 2 2, Fig. 1; and Fig. 3 is a perspective view there- 6o of showing the under side of the valve.

The same letters are used to designate like parts in all the Views. i

In said drawings, A is the valve-body, B the inlet-passage, and C the outlet-passage. The bonnet D is secured to the flanges of bodyA by the screws or tap-bolts d. The valve-stem E is provided with a conical valve e, which is adapted to fit the valve-seat a. The valvestem E is also provided with the fast collar e', 7o which may be adj ustable, if desired, and with the loose collar 62, between which is secured the Coil-spring F. The lower end of the valvestem and the collar e' are preferably screwthreaded, so that by' turning said collar the tension of spring F may be varied, as desired. A packing G is held between the loose collar 62 and the under side of bonnet I), and serves as a stufting-box for the valve-stem by fitting closely around the same, and so preventing 8o leakage. This packing may be of leather, rubber, or other suitable material. A rockarm H is properly secured to the upper end of the valve-stem E. To the under side of the arm H is secured aI projection h, (which is shown as a screw passing through the arm,) and the upper surface of bonnet D is provided with a beveled step or projection d', with whichfias the arm H is swung around or vibrated, as hereinafter described, the projec- 9o tion h will engage, and as it `passes over said step the valve-stem E is lifted and the valve e momentarily carried away from its seat, being returned to its original position by the action of spring F as soon as projection h clears the step cl'. A spring I (or weight) tends to hold the arm H in the position shown in Fig. 1, and said arm is connected, as by a chain, wire, or cord J, to any object that is adapted to impart the requisite movement Joe -with the desired freqnency to the apparatus.

For instance, the same may be eonnected or attached to the door, lid, or handle of a closet, so that when the eloset is used the arm II will be carried over the projection cZ'.

I prefer, in the use of myA valve for the particular purposes above referred to, to keep the valve e slightly oif its seat normally, so that a very small quantity of water will pass through the same when the parts are in the position shown in Fig. 1. This s accomplished by simply turning the screw h so that it will press against the bonnet D with sufficient force to lift the valve the desired amount, and the distance between said valve and its seat may be increased or diminished, as desired, by merely turning said screw in one direction or the other.

Then my valve is used in connection with other apparatns for the purpose to which I last referred-namely, the disinfection of a eloset-the valve is secured to a suitable support by screwsb passing through lugs b'. The inlet B is eonnected with the water-supply and the arm H is eonnected by the eord or chain J (which passes over the sheave K) to any movable part of the closet-such as the door or lid-so that the opening of the same will swing the projection h over step cl', and theelosing of the samewill permit the spring I to carry the arm back to its original position. If desired the parts may be arranged so that either movement of the door or lid will produce the desired movement of arm II. The other parts of the apparatus or system are so arranged that the water passing through the valve will be delivered through the outlet-passage C into the receptacle which receives the eoncentrated disinfeetant, and it will thus be seen that each time the eloset is used the flow of water through the valve will be suddenly increased, the valve-orifices will be thoroughly flushed, and the diluted disinfectant will be carried quickly to the portion of the closet to which it is to be applied.

If desred the spring I may be entirely omitted and the spring F so conneeted with the valve stem and body as to carry the arm II back to its original position by the torsional stress of the spring F. v

I do not claim herein the method of disinfecting to which I have referred, nor do I claim the combination of my mproved valve with other parts and features of the system, as I inten'd to file separate applications for them; but

VVhat I claim, and desire to Secure by Letters Patent, isv 1. In a valve, the combination of the valvestem E, provided with the valve e, the spring F surrounding said stem and adapted to normally hold the valve to its seat, the eollar 62 loosely mounted on said stem and furnishing a bearing for the upper end of said spring, the packing G,held between the collar e2 and the bonnet of the valve, the arm II rigidly secured to said stem and provided with a project-ion h, and the step CZ' on the bonnet of the valve, substantially as and for the purposes set forth.

2. In a valve, the combination of the valvestem E, provided with the valve c, the spring` F surrounding said stem and adapted toinormally hold the valve to its seat, the collar 62 loosely mounted on said stem and furnishing a bearing for the upper end of said sp ring, the packing G, held between the coilar 62 and the bonnet of the valve, the arm Il, rigidly seeured to said stem and provided with a projection h., and the step on the bonnet of; the valve, and mechanisni, substantially as shown, for Vibrating said arm and rcturning it to its normal position, substautiallyas and for the pu rposes described.

FREDERIGK JAMES MITCIIELL.

ftnessesz S. G. HE'rcALr, WILLIAM LIND. 

